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All Journal Jurnal Perikanan dan Kelautan Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Jurnal Akuatika Indonesia
Madju Siagian
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Chlorophyll-a Concentration in The Lubuk Siam Lake, Lubuk Siam Village, Siak Hulu Sub District, Kampar District Clarissa, Enny; Siagian, Madju; Dahril, Tengku
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

AbstractThere are several human activities around the Lubuk Siam Lake such as plantation and agriculture. Anthropogenic activities will influence nutrient in waters.  To understand the concentration of chlorophyll-a in the Lubuk Siam Lake, a research was conducted in February - March 2017. There were 3 stations namely Station 1 (inlet area), Station 2 (fish cage area), and Station 3 (outlet area). In each station, there   were 3 sampling points : at surface  (50cm), 2 secchi depth (126cm) and 3 secchi depth (189 cm). Sampling were taken  once/week for 3 weeks period. Water quality parameters measured were chlorophyll-a, temperature, transparency, pH, dissolved oxygen, free carbon dioxide, nitrate, and phosphate.  Results shown that chlorophyll-a concentration was 12.76 – 44.86 µg/L, temperature 28.5 – 30.5°C, transparency 63 – 89 cm, pH 7.03 – 7.27, dissolved oxygen 4.09 – 7.83 mg/L, free carbon dioxide5.29 – 15.98 mg/L, nitrate 0.069 – 0.168 mg/L and phosphate 0.164 – 0.123 mg/L. Based on the concentration of chlorophyll-a, the Lubuk Siam Lake can be categorized as mesotrophic.Keywords: Chlorophyll-a, mesotrophic, water quality, Lubuk Siam Lake.
Pengaruh Budidaya Keramba Jaring Apung Terhadap Struktur Komunitas Perifiton pada Substrat yang Berbeda di Sekitar Dam Site Waduk PLTA Koto Panjang Kampar Riau Siagian, Madju
Jurnal Akuatika Indonesia Vol 3, No 1 (2018): Jurnal Akuatika Indonesia (JAkI)
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Padjadjaran

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Abstract

Penelitian ini bertujuan mengetahui struktur komunitas perifiton pada substrat yang berbeda dan mengetahui tingkat pencemaran waduk PLTA Koto Panjang sekitar dam site dengan perifiton sebagai indikator biologis.  Metode yang digunakan dengan pengukuran langsung di lapangan pada bulan November 2015 dengan pengamatan suhu, kecerahan, CO2, nitrat, fosfat, oksigen and perifiton. Hasil penelitian menunjukkan bahwa parameter kualitas yang diamati memenuhi syarat dalam mendukung hidup perifiton. Nilai indeks keanekaragaman pada substrat yang berbeda berkisar 1,117-2,24975 dimana indeks dominansi berkisar 0,24378-0,47126 dan indeks keseragaman berkisar 1-1,8. Dari nilai indeks-indeks tersebut, perairan di sekitar dam site zona lakustrin Waduk PLTA Koto Panjang telah mengalami tekanan (gangguan) dengan status tercemar ringan, tidak ada spesies yang mendominasi dan keseragaman organisme berada dalam keadaan seimbang, tidak terjadi persaingan terhadap makanan  dan ruang. Dalam penelitian ini terlihat bahwa pada substrat keramba (pelampung) jenis dan jumlah individu/jenis lebih rendah dibandingkan pada substrat daun, untuk itu disarankan melihat struktur komunitas perifiton pada jaring kerambanya  dikaitkan dengan keberlanjutan aktivitas budidaya ikan dalam KJA di sekitar dam site Waduk PLTA Koto Panjang. Dari hasil penelitian ini disimpulkan aktivitas budidaya ikan dalam  KJA di waduk PLTA Koto Panjang  di sekitar dam site mempengaruhi  struktur komunitas perifiton pada masing-masing stasiun dan substrat yang berbeda.
Types and Abundance of Peripyhton in the Stone Substrate placed in the Tapung River, Tapung District, Kampar Regency, Riau Province Nengsi, Agustina Surya; Dahril, Tengku; Siagian, Madju
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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 AbstractPeriphyton is a group of aquatic microorganism that grew in the surface of natural substrates such stone, wood, plants and aquatic animals. A research aims to understand the periphyton type and abundance in the Tapung River was conducted in April to May 2017. Sampling were conducted in 3 stations, they were in the upstream (St 1), midstream (St 2), downstream (St 3), 4 times, once/ week. Stone circular were removed (9 from St1, 7 from St2 and 5 from St3). The rest of the stone were taken in 14th, 21st and 28th day. Periphyton samples were scrapped from the stone’s surface, fixed with Lugol 1% and then were identified.  Results shown that there were 32 periphyton species present and they were  belonged to 3 classes, namely Bacillariophyceae (23 species), Chlorophyceae (5 species) and Cyanophyceae (4 species). The abundance of phytoperiphyton in the upstream, midstream and downstream of the Tapung River was significantly different, there were 7.689 cell/cm2 (upstream), 18671 cell/cm2 (midstream), and 34.446 cell/cm2 (downstream) respectively. Periphyton abundance in the Tapung River in general was around 7.689 – 34.446 cells /cm2. Based on data obtained, it can be concluded that water in the Tapung River is categorized as oligotrophic. Keywords: Peripyhton, Stone, Trophic Status 
Carrying Capacity Assessment Based on Chlorophyll-ain the Tajwid Lake, Langgam Sub-District, Pelalawan District, Riau Province for Extensive Fishing Fadilah, Nisa Wangi Tresna; Simarmata, Asmika H.; Siagian, Madju
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT Carrying capacity is defined as the ability of aquatic environment to support the life organism in that area. A study aimed to assess the aquatic carrying capacity based on chlorophyll-a for extensive fishing was conducted in the Tajwid Lake. The carrying capacity was determined based on primary productivity (chlorophyll-a content), which is indicating the existence of phytoplankton in the water. This research was conducted in March-April 2018 in the Tajwid Lake. There were 3 stations, namely Station 1 (inlet area), Station 2 (in the middle of lake) and Station 3 (outlet area).  Water quality parameters measured were temperature, transparency, pH, dissolved oxygen, CO2, nitrate, phosphate, and chlorophyll-a concentration. The concentration of chlorophyll-a indicates that the carrying capacity of the Tajwid lake for extensive fishing was 6.925 tons/year. Water quality parameters were as follows: transparency 47.0-54.7 cm, temperature 29.3-30.7oC, pH 5, dissolved oxygen  4.75-6.29 mg/L, CO2 17.32-22.64 mg/L, nitrate 0.0541-0.0820 mg/L, phosphate 0.1327-0.2798 mg/L, and concentration of chlorophyll-a  was 7.96 µg/L. 
Carrying Capacity Assessment Based on Chlorophyll-ain the Tajwid Lake, Langgam Sub-District, Pelalawan District, Riau Province for Extensive Fishing Fadilah, Nisa Wangi Tresna; Simarmata, Asmika H.; Siagian, Madju
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRACT Carrying capacity is defined as the ability of aquatic environment to support the life organism in that area. A study aimed to assess the aquatic carrying capacity based on chlorophyll-a for extensive fishing was conducted in the Tajwid Lake. The carrying capacity was determined based on primary productivity (chlorophyll-a content), which is indicating the existence of phytoplankton in the water. This research was conducted in March-April 2018 in the Tajwid Lake. There were 3 stations, namely Station 1 (inlet area), Station 2 (in the middle of lake) and Station 3 (outlet area).  Water quality parameters measured were temperature, transparency, pH, dissolved oxygen, CO2, nitrate, phosphate, and chlorophyll-a concentration. The concentration of chlorophyll-a indicates that the carrying capacity of the Tajwid lake for extensive fishing was 6.925 tons/year. Water quality parameters were as follows: transparency 47.0-54.7 cm, temperature 29.3-30.7oC, pH 5, dissolved oxygen  4.75-6.29 mg/L, CO2 17.32-22.64 mg/L, nitrate 0.0541-0.0820 mg/L, phosphate 0.1327-0.2798 mg/L, and concentration of chlorophyll-a  was 7.96 µg/L. 
Pengaruh Budidaya Keramba Jaring Apung Terhadap Struktur Komunitas Perifiton pada Substrat yang Berbeda di Sekitar Dam Site Waduk PLTA Koto Panjang Kampar Riau Siagian, Madju
Jurnal Akuatika Indonesia Vol 3, No 1 (2018): Jurnal Akuatika Indonesia (JAkI)
Publisher : Direktorat Sumber Daya Akademik dan Perpustakaan Universitas Padjadjaran, Grha. Kandaga (P

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (27.83 KB) | DOI: 10.24198/jaki.v3i1.17993

Abstract

Penelitian ini bertujuan mengetahui struktur komunitas perifiton pada substrat yang berbeda dan mengetahui tingkat pencemaran waduk PLTA Koto Panjang sekitar dam site dengan perifiton sebagai indikator biologis.  Metode yang digunakan dengan pengukuran langsung di lapangan pada bulan November 2015 dengan pengamatan suhu, kecerahan, CO2, nitrat, fosfat, oksigen and perifiton. Hasil penelitian menunjukkan bahwa parameter kualitas yang diamati memenuhi syarat dalam mendukung hidup perifiton. Nilai indeks keanekaragaman pada substrat yang berbeda berkisar 1,117-2,24975 dimana indeks dominansi berkisar 0,24378-0,47126 dan indeks keseragaman berkisar 1-1,8. Dari nilai indeks-indeks tersebut, perairan di sekitar dam site zona lakustrin Waduk PLTA Koto Panjang telah mengalami tekanan (gangguan) dengan status tercemar ringan, tidak ada spesies yang mendominasi dan keseragaman organisme berada dalam keadaan seimbang, tidak terjadi persaingan terhadap makanan  dan ruang. Dalam penelitian ini terlihat bahwa pada substrat keramba (pelampung) jenis dan jumlah individu/jenis lebih rendah dibandingkan pada substrat daun, untuk itu disarankan melihat struktur komunitas perifiton pada jaring kerambanya  dikaitkan dengan keberlanjutan aktivitas budidaya ikan dalam KJA di sekitar dam site Waduk PLTA Koto Panjang. Dari hasil penelitian ini disimpulkan aktivitas budidaya ikan dalam  KJA di waduk PLTA Koto Panjang  di sekitar dam site mempengaruhi  struktur komunitas perifiton pada masing-masing stasiun dan substrat yang berbeda.
Types and Abundance of Phytoplankton in The Sepinang Lake, Siak Hulu Sub-District, Kampar District, Riau Province Yunita, Sarah Amelia; Siagian, Madju; Simarmata, Asmika Harnalin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTThere were several human activities around the Sepinang Lake such as agriculture and palm plantation contributes the input of organic and anorganic matter that influence the type and abundance of phytoplankton. To understand the types and abundances of phytoplankton present in the Sepinang Lake, a researchhas been conducted in March-April 2018. There were three sampling points, namely in the inlet, in the middle of the lake, and in the end of the lake. In each sampling point,water was sampled from the surface and 2 Secchi depth. Samplings were conducted 3 times, once/week.Water quality parameters measured were temperature, transparency, depth, dissolved oxygen, CO2, nitrate, phosphate and pH.Results shown that there were 47 species of phytoplankton that were belonged to 5 divisions, namely Chrysophyta (10 species), Chlorophyta (25 species), Cyanophyta (8 species), Euglenophyta (3 species) and Cryptophyta (1 species). The phytoplankton abundance of the Sepinang Lake was 106,490 – 150,650 cells/L. The most common type of phytoplankton present wasMonoraphodium griffithii.Result shown that the temperature was 30.6-320C, transparency was 49.3-62.8 cm, depth was 211-223.6 cm, dissolved oxygen was 4.22-5.58 mg/L, CO2 was 11.32-13.32 mg/L, nitrate was 0.07-0.23 mg/L, phosphate was 0.09-0.23 mg/L and pH was 5.3-5.6. Based on the type and abundance of phytoplankton present, it can be concluded that the Sepinang Lake can be categorized as mesotrophic. Keywords: Kampar River, Oxbow Lake, Mesotrophic, Monoraphodium
Limnological Condition of the Pekak Lake,based on physical-chemical parameters Buluh Nipis Village, Kampar District, Riau Province Br. Allagan, Desima Kristina; Siagian, Madju; H. Simarmata, Asmika
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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AbstractPekak Lake is one of oxbow lakes located in the Buluh Nipis Village. A research aims to understand the limnological condition of the Pekak Lake based on physical – chemical parameters has been conducted in March-April 2018. There were three sampling stations namely Station 1 (inlet), Station 2 (in the middle of the lake), and Station 3 (outlet). In each station there were two sampling points, in the surface (0 cm) and 1 Secchi depth (75 cm). Samplings were done once/week for 3 weeks period. Water quality parameters measured were temperature, transparency, depth, pH, DO, CO2 free, nitrate and phosphate concentration. Result shown that the temperature 28.6-300C, transparency 68.5– 76.83 cm, depth 1.45 – 2.70 m, pH 5 , DO 5.13-6.4 mg/L, CO2 free 8.23-15.48 mg/L, nitrate 0.05 – 0.19 mg/L and phosphate 0.06 – 0.11 mg/L.  Based on the nitrate and phosphate concentrations, Pekak Lake can be categorized oligotrophic- mesotrophic. Keyword : Oxbow Lake, Water Quality, Oligotrophic, Mesotrophic
Type and Density of Zooplankton in The Pekak Lake Buluh Nipis Village, Siak Hulu Sub District, Kampar District, Riau Province S Sinaga, Jefri Daniel; Siagian, Madju; Simarmata, Asmika Harnalin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract The existence of human activities around the Pekak Lake producing organic  and anorganic materials that enter the water and affects the type and density of zooplankton in general. To understand the types and density of zooplankton in the Pekak Lake, a research has been carried out in March-April 2018. There were three sampling points, namely in the inlet, in the middle of the lake, and in the end of the lake. In each sampling point, the water was sampled from the surface and 0.75 m depth. Water quality parameters measured were temperature, transparency, dissolved oxygen, pH, nitrate and phosphate. Sampling were conducted 3 times, once/week. Results shown that there were 15 species of zooplankton present and they were belonged to 12 classes, namely Ciliata (3 species), Crustacea (2 species), Copepoda (1 species), Sagittoidae  (1 species), Insecta (1 species), Cladocera (1 species), Adenophorea (1 species), Suctoria (1 species), Monogononta (1 species), Sarcodina (1 species), Seisonidae (1 species), Rotifera (1 species). The zooplankton density in the Pekak Lake was 2.466-5.277 organisms/L. The most common zooplankton in Pekak Lake is Ciliate. Water quality parameter values are as follow, temperature was 27-30 0C, transparency was 68.5-76.8 cm, dissolved oxygen was 5.13-6.4 mg/L, pH  5.0, CO2 was 8.23-15,58mg/L, nitrate was 0.05-0.19 mg/L and phosphate was 0.06-0.11 mg/L. Based on the density of zooplankton, the Pekak Lake can be categorized was oligotrophic.Keywords : Kampar River, Oxbow Lake, Eutrophic, Ciliate.
Trophic State of The Pekak Lake, Buluh Nipis Village, Kampar District, Riau Province, Based on Nygaard Index. Gaol, Melinda Juliana Lumban; Siagian, Madju; Dahril, Tengku
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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AbstractNygard Index can be used to determine the trophic state of waters. Calculation of this index is based on the number of phytoplankton species that are belonged to these following groups, namely Chlorococcales, Euglenophyceae, Centric diatom, Myxophyceae and Desmidiaceae. To understand the trophic state of the Pekak Lake, a research has been conducted in March-April 2018. There were 3 sampling stations, namely S1 (in the inlet, from the Kampar  River), S2 (in the middle of the lake) and S3 (in the end of the lake). In each station there were two sampling points, in the surface (0.2 m), and 1 Secchi depth (0.75 m). Samplings were conducted 3 times, once/week. Water quality parameters measured were phytoplankton, transparency, temperature, pH, nitrate, phosphate, dissolved oxygen and free carbon dioxide. Results shown that there are 63 species of phytoplankton present, namely Class Chlorophyceae (22 species), Class Zygnematophyceae (16 species), Bacillariophyceae (12 species), Class Euglenophyceae (4 species),  and Class Myxophyceae (3 species), and Class Cryptophyceae (1 species). The water quality parameters are as follows: transparency 68.5-76.8 cm, temperature 28-30 0C, pH 5, nitrate 0.05-0.14 mg/L, phosphate 0.06-0.11 mg/L, dissolved oxygen 5.13-6.40 mg/L, free carbon dioxide 8.23-15.48 mg/L. Nygaard Index value of the Pekak Lake was 1.8–2.37, and it can be categorized as mesotrophic to eutrophic.Keywords: Oxbow Lake, Phytoplankton, Mesotrophic, Water Quality.
Co-Authors Asmika Harnalin Simarmata Astria, Katarina Gita Br. Allagan, Desima Kristina Bukit, Friska Lesmana Beru Clarissa, Enny Clemens Sihotang D Kusumawati, Yuliana Dasti Janarko Putra, Dasti Janarko Dewi, Afrila Fadilah, Nisa Wangi Tresna Gaol, Melinda Juliana Lumban Indra R. Simangunsong, Indra R. Intan S, Yeni Debora Krismanto Viade Nababan Lubis, Helfrida M Silalahi, Dio M Sinaga, Saut Mandasari, Ayu Defi Maria Virgita Sihaloho, Maria Virgita Nainggolan, Dorma Abigail Nengsi, Agustina Surya Olivia, Reyka Kristin Perawati Sartika Lumbangaol Radieka Febyando, Radieka Rodo Sinatra Nababan, Rodo Sinatra S Sinaga, Jefri Daniel Siahaan, Oloan Sihombing, Susi Silaen, William Fransisco Simanjuntak, Taruli Septiana Sitorus, Rike Yance Tengku Dahril, Tengku Walmon Sinaga Yunita, Sarah Amelia Zein Lubis, Solat Adawiyah